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Proceedings Paper

Measuring decoherence properties of charge qubits using buried donor cellular automata
Author(s): Jared H. Cole; Andrew D. Greentree; Cameron J. Wellard; Lloyd C. L. Hollenberg; Steven Prawer
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Paper Abstract

Quantum-dot Cellular Automata (QDCA) provide an interesting experimental system with which to study the interaction of a charge-based two-level system with the surrounding solid-state environment. This is particularly important given the recent interest in solid-state quantum computers using charge-qubits. We show that many of the properties of these qubits, coupling strength, tunnelling time, relaxation rate and dephasing time can be estimated using a QDCA cell like structure. Calculations are performed for the case of buried donors in silicon but the results are equally applicable to other forms of charge-qubit.

Paper Details

Date Published: 23 February 2005
PDF: 12 pages
Proc. SPIE 5650, Micro- and Nanotechnology: Materials, Processes, Packaging, and Systems II, (23 February 2005); doi: 10.1117/12.583194
Show Author Affiliations
Jared H. Cole, Univ. of Melbourne (Australia)
Andrew D. Greentree, Univ. of Melbourne (Australia)
Cameron J. Wellard, Univ. of Melbourne (Australia)
Lloyd C. L. Hollenberg, Univ. of Melbourne (Australia)
Steven Prawer, Univ. of Melbourne (Australia)

Published in SPIE Proceedings Vol. 5650:
Micro- and Nanotechnology: Materials, Processes, Packaging, and Systems II
Jung-Chih Chiao; David N. Jamieson; Lorenzo Faraone; Andrew S. Dzurak, Editor(s)

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